Gce Model Questions Vol1 2018 Agricultural Science Question 34
Practice objective / multiple choice question 34 from the 2018 Gce Model Questions Vol1 Agricultural Science examination.
A cattle herd consists of 120 animals. A contagious disease affecting the herd has a basic reproduction number \(R_{0}=2.5\). A vaccine available for the disease has an efficacy of 85 %. Using the herd‑immunity formula \(p_{\text{min}} = \dfrac{1 - 1/R_{0}}{\text{efficacy}}\), where \(p_{\text{min}}\) is the minimum proportion of the herd that must be vaccinated, calculate the minimum number of animals that should be vaccinated to reduce the effective reproduction number below 1. Round up to the nearest whole animal.
Answer Options
About This Question
This is Gce Model Questions Vol1 2018 Agricultural Science Question 34. It is one of the objective questions from the 2018 Gce Model Questions Vol1 Agricultural Science examination.
Difficulty level: Medium .
Master the Exam!
You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.